https://blog.wongcw.com/2020/07/30/%e5%9c%96%e9%9d%88%e7%8d%8e%e5%be%97%e4%b8%bbyann-lecun%e8%aa%8d%e8%bc%b8%e9%9b%a2%e9%96%8b%e6%8e%a8%e7%89%b9ai%e7%a4%be%e5%8d%80%e4%b8%8a%e6%bc%94%e6%a7%93%e7%b2%be%e6%96%87/